[slurm-users] cgroups/v2 plugin rpmbuild issue

[Chris Taylor via slurm-users]

Trying to use rpmbuild on Rocky9 Linux, Slurm 21.08 - I want to build with cgroups/v2 support and have these installed:

libbpf-devel.x86_64 2:1.3.0-2.el9
dbus-devel.x86_64 1:1.12.20-8.el9
kernel-headers.x86_64 5.14.0-427.22.1.el9_4
hwloc-devel.x86_64 2.4.1-5.el9

In https://slurm.schedmd.com/cgroup_v2.html it says:

Requirements
For building cgroup/v2 there are two required libraries checked at configure time... Look at your config.log when configuring to see if they were correctly detected on your system.

I don't see any mention of 'ebpf', 'bpf', or 'dbus' when I grep through ~/rpmbuild/BUILD/slurm-21.08.8-2/config.log. Before I noticed that, I installed the RPMS on my cluster and get cgroup errors when I try to run a job or get an allocation. The slurmctld and slurmd processes start up fine on the servers, and I have a generic /etc/slurm/cgroup.conf.

It seems like the cgroups plugin isn't getting built right with rpmbuild- how do I troubleshoot? Thanks

Chris

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[Chris Taylor via slurm-users]

Also it looks like only the v1 plugin gets built and added to the RPM-

# ls -l /usr/lib64/slurm/cgroup_v1.so
-rwxr-xr-x 1 root root 385872 Jul 1 18:47 /usr/lib64/slurm/cgroup_v1.so
# ls -l /usr/lib64/slurm/cgroup_v2.so
ls: cannot access '/usr/lib64/slurm/cgroup_v2.so': No such file or directory

[Adam Tygart via slurm-users]

The version of Slurm you're building doesn't have support for cgroup
v2. 22.05 does, but I'd recommend going through the upgrade cycle and
moving to something even moderately recent.

https://github.com/SchedMD/slurm/blob/slurm-22.05/RELEASE_NOTES#L60

--
Adam

[Chris Taylor via slurm-users]

Ah, thanks :) - I just realized this when I saw v1 was the only plugin included in the source. Yes I'm cycling through 21.08 so I can eventually get on the latest Slurm.
Chris

> On 07/06/2024 9:38 AM PDT Adam Tygart via slurm-users <slurm...@lists.schedmd.com> wrote:
>
>
> The version of Slurm you're building doesn't have support for cgroup
> v2. 22.05 does, but I'd recommend going through the upgrade cycle and
> moving to something even moderately recent.
>